/* Details: signver was developed in support of the Parallel
 * Elliptic Curve Cryptography Engine for OpenSSL
 * ====================================================================
 * Copyright (c) 1998-2007 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */
#include"load_engine.h"
//#include"apps.h"
#include<openssl/engine.h>
#include<openssl/bio.h>
/*
int generic_load_engine_fn(const char *engine_id,
                            const char **pre_cmds, int pre_num,
                            const char **post_cmds, int post_num)
{
	BIO* bio_err= BIO_new_fp(stderr,BIO_NOCLOSE);
    CRYPTO_malloc_init();
    ERR_load_crypto_strings();
    OpenSSL_add_all_algorithms();
    ENGINE_load_builtin_engines(); 
	return(NULL!=setup_engine(bio_err,engine_id,0));
}
*/
int generic_load_engine_fn(const char *engine_id,
                            const char **pre_cmds, int pre_num,
                            const char **post_cmds, int post_num)
 {
    ENGINE *e;
    CRYPTO_malloc_init();
    ERR_load_crypto_strings();
    OpenSSL_add_all_algorithms();
    ENGINE_load_builtin_engines(); 
     e = ENGINE_by_id(engine_id);
     if(!e) return 0;
     while(pre_num--) {
         if(!ENGINE_ctrl_cmd_string(e, pre_cmds[0], pre_cmds[1], 0)) {
             fprintf(stderr, "Failed command (%s - %s:%s)\n", engine_id,
                 pre_cmds[0], pre_cmds[1] ? pre_cmds[1] : "(NULL)");
             ENGINE_free(e);
             return 0;
         }
         pre_cmds += 2;
     }
     if(!ENGINE_init(e)) {
         fprintf(stderr, "Failed initialisation\n");
         ENGINE_free(e);
         return 0;
     }
     /* ENGINE_init() returned a functional reference, so free the structural
      * reference from ENGINE_by_id(). */
     ENGINE_free(e);
     while(post_num--) {
         if(!ENGINE_ctrl_cmd_string(e, post_cmds[0], post_cmds[1], 0)) {
             fprintf(stderr, "Failed command (%s - %s:%s)\n", engine_id,
                 post_cmds[0], post_cmds[1] ? post_cmds[1] : "(NULL)");
             ENGINE_finish(e);
             return 0;
         }
         post_cmds += 2;
     }
     ENGINE_set_default(e, ENGINE_METHOD_ALL & ~ENGINE_METHOD_RAND);
     /* Success */
     return 1;
 }

